How often do you change spark plugs?
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08-31-2012, 09:15 AM
Drives: 335i SE Coupe Space Grey
Join Date: Nov 2008
2006 BMW 335i
Just got some misfires and Cobb mentioned spark plugs and coils...
Need to find out whats wrong...Getting a bit annoyed that the Cobb maps are not working on my car...when the car runs perfect std...
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